HK91 / G3 / HK51 Series
Discover the ultimate collection of parts for your HK G3 and HK 91, designed to enhance precision, reliability, and performance. Featuring G3 Stocks for improved ergonomics, 91 Barrels for superior accuracy, and G3 Triggers for enhanced responsiveness. Our selection also includes 91 Handguards for advanced protection and control, G3 Forearms for optimal handling, and detailed Parts Kits to fully equip your firearm for any scenario. Each component is engineered for flawless compatibility with your HK G3 or HK 91, ensuring your rifle meets the highest standards of operation and craftsmanship.
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On Sale
HK MP5, HK90 Series Trigger Spring - SEF, Navy
MKE
Now: $2.45Was: $8.95MKE SEF & Navy 3 Position Trigger Spring The MKE trigger spring is an essential upgrade for anyone dealing with worn or broken trigger return springs in surplus trigger packs or as spares for all 90 series owners. These springs are fully compatible...HKP-22225Now: $2.45Was: $8.95 -
HK91, G3 PTR Fixed Stock Complete with Enhanced Heavy Buffer - Surplus - Black
H&K Heckler & Koch
$349.95German G3, 91, PTR Stock complete with Enhanced Heavy Buffer - Surplus Used black German stock complete with Enhance DMR buffer installed. Ready to drop in on your HK or clone rifle. Used in perfect working condition. Each stock includes all parts...HKP-20069$349.95 -
HK51K Barrel - 7.62 / .308 - 5.3" - Threaded 15x1 RH
RCM
$164.95RCM HK51K (7.62x51/.308) Barrel - Threaded 15x1 RH Made to exact HK51K specifications from cold hammer forged steel, this barrel matches the quality of HK German barrels. Ideal for custom builds and HK51K style projects. Specifications: Made In The...HKP-02392$164.95 -
Out Of Stock
HK91, G3 , PTR Magazine - 100 Round Drum
Beta C-Mag
$839.95Beta C-Mag (7.62x51/.308) 100 Round Drum Magazine Includes C-MAG magazine in 7.62MM,308 G3/HK91 with clear covers, personal loader, black magazine pouch with carry strap, technical/owner's manual, and graphite dry lubricant. No longer in production and...HKP-02293$839.95 -
HK G3, HK33, HK93 Bayonet with Scabbard - NOS
H&K Heckler & Koch
$227.95HK G3, HK33, HK93 Bayonet with Scabbard - New Old Stock Genuine German HK military surplus bayonet in original wrap. These are the 12-groove version of the popular military bayonet. Scabbard is included. Compatible With: HK G3 HK91 HK33 HK93HKP-22366$227.95 -
HK91, G3 Front Sight Tower - SURPLUS
H&K Heckler & Koch
$16.95H&K G3/91 Front Sight Tower - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine H&K steel front sight tower for the G3 & HK91. Provides the front sight post assembly for target acquisition and secures the...HKP-22158$16.95 -
HK A3 Parkerized Stock Protective Cover
H&K Heckler & Koch
$19.95H&K A3 Parkerized Stock Protective Cover The perfect replacement part for all HK G3, HK33, and MP5 collapsible stocks issued with steel covers. Complete with locking spring clips welded in place.HKP-20649$19.95 -
HK91, G3 Stock Set with Backplate - Black - Used Good
H&K Heckler & Koch
$299.95Original G3, 91, PTR German Army Used Surplus Black Stock Set - Complete Factory HK German production. Each stock set is used but in perfect working order. Each set is in overall good condition. Most will clean up nicely with a little TLC...HKP-16205$299.95 -
HK91, G3, PTR TWO Magazines with Pouch - 20 Round - Aluminum
H&K Heckler & Koch
$49.95H&K 91/G3/MSG90 (7.62x51/.308) 2x20 Round Aluminum Mags W/ New Vinyl Mag Pouch Combo deal: 2 X 20 round aluminum magazines with new green vinyl mag pouch. Compatible With: HK 91 HK G3 HK PSG-1 HK MSG-90 PTR-91 Vector 51 Century HK 308...HKP-16324$49.95 -
HK91, G3, HK33, HK53, HK93 Stock and Stock Adapter - AR Style
PTR
$209.95PTR AR Brace/Stock Adapter w/ Magpul Stock - G3, 91, 93, 53, 33 AR15/M16 to HK 90 series stock adapter set with a Magpul MOE stock installed as well as the buffer tube and castle nut. Just use your existing back-plate and MIL-SPEC buffer assembly and you...HKP-15457$209.95 -
Out Of Stock
Sidelok Optic Mount - 30mm - Modular
KDG Kinetic Development Group
$224.95Kinetic Development Group Sidelok Modular Optic Mount - 30mm The new KDG Modular Optic Mount is based off the proven Sidelok family of quick detach optic mounts and features the same user-friendly, tool-free design. KDG set out to design a Sidelok mount...HKP-19062$224.95 -
HK MP5, HK90 Series Hammer Spring Bushing - Burst
H&K Heckler & Koch
$19.9990 Series Hammer Spring Bushing For Burst Trigger Packs This part will fit both two and three-round burst trigger packs.HKP-02398$19.99